Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Liviu Klein, MD, MS

Individual provider Internal Medicine Physician · NPI 1235199340

Liviu Klein, MD, MS is registered under Cardiovascular Disease (Cardiology) in San Francisco, California. Qualified in 1998, 28 years ago. Practices with University of California San Francisco, a 1,793-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California and Illinois.

Years since qualifying
28
Licensed in
CA, IL
In the registry since
2006
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

505 Parnassus Ave Rm M-1178B Box 0124
San Francisco, CA 94143-2204
Phone: (415) 476-2143
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Advanced Heart Failure and Transplant Cardiology Physician (primary) Taxonomy 207RA0001X · Licence C54894 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036-108381 (IL)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 036-108381 (IL)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence C54894 (CA)
Clinical Cardiac Electrophysiology Physician Taxonomy 207RC0001X · Licence 036-108381 (IL)

Record details

NPI number1235199340
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MS
Sole proprietorYes
NPI enumeratedMarch 23, 2006
Last updated in NPPESOctober 14, 2021
Certification dateOctober 14, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesCARDIAC ELECTROPHYSIOLOGY, INTERNAL MEDICINE
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice University Of California San Francisco — 1793 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients167
Services billed 4,181 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Consulting Fee $42,448 23 payments
Travel and Lodging $8,735 26 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $2,967 49 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at University of California San Francisco

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1793 clinicians in the practice; 12 are shown here.

Other providers in San Francisco